Typewriting machine



Aug. 1, 1934. IB, J Down 1,969,597

TYPEWRITING MACHINE Filed March 17. 1955 s sheets-sheet 1 AU@ 7, 1934 B. J. Down v 1,969,597

TYPEWRITING' MACHINE Filed 'March 17 k1933 3 Sheets-Sheet 2 Aug' 79 I B` J. DOWD 'l TYPEWRITING MACHINE Filed March 17. 41933 s sheets-sheet ATTORNEY S 4Patented Aug. 7, 1934.

PATENT OFFICE 'rrrEwamNc Miicnnm Bernard J. Dowd, west Hartford, @n.mgnor to Royal Typewriter Company, Inc., New York',` N. Y., a corporation of New York Application March l'l, 1936', Serial No. 661,389

9 claims. J(ci. :24a-1o) This invention relates generally to typewriting machines and more particularly to new and useful improvements in means for supporting suchmachines in a manner for-effectively' absorbing the shocks and vibrations incident to op- Veration of such machines and for closing the bottom thereof against meddling and undue dust accumulation.

Among the objects of the invention is to pro- ,10.. vide a novel typewriting machine supporting and bottom closing unit comprising frame means having shock and vibration absorbing devices engageable with the machine to be supported and the table or desk for supportingv the ma- 15, chine, and a bottom cover plate independently mountable on and removable from said frame means. With the vabove and other objects in view which will more fully appear, the nature of the invention will be more. clearly understood by following the description, the appended claims,'

and the several views illustrated in the accompanying drawings.

" In the drawings:-

Figure 1 is a fragmentary side elevation illustrating the invention in use, parts being broken away andn section.,

Figure 2 is an inverted plan view parts being broken away and in section. y

Figure 3 is an enlarged detail central vertical longitudinal sectiontaken through one otnthe side rails or channels, parts being broken away and the cover plate being shown released and removed in dot and dash lines.

,Y Figure 4 is a detail vertical cross section taken von the line 4--4 on Figure 3.

Figure 5 is a detail perspective view illustraing one end of one of the 'side rails or channe j 4Q lFigure 6 is a detail perspective view of one ofY the soft rubber cushioning or insulator pads.

Figure 'I is a detail perspective view of the removable cover plate,

Figure 8 is a detail sectional perspective view illustrating a modified form of removable cover lplate.

Figure 9 is a fragmentary sectional perspective view-illustrating'a modified form of frame means and removable cover plate, the' latter being #0, shown separated from said frame means.

Inl the drawings in which like reference characters indicate like parts in all of the figures, A generally designates a typewriting machine, B the side walls org-the frame4 thereof which extendforwardly to accommodate the keyboard and having foot portions C equipped with the usual threaded sockets D bywhich. supporting feet are ordinarily secured to the frame, and E the rear frame wall which vjoins the `side walls B. 60

All of the above parts will be recognized as conventional typewriter parts and in themselves form no part of my present invention except insofar as they combine with the shock and vibration absorbing and dust protecting unit described hereinafter. My improved unit, in the form thereof shown in Figures 1 to 6 of the drawings, includes a pair of right and left frame members in the es v knature of side rails or yU-shaped channels 5 '1Q vmodating extensionsof the side walls B of the typewriter frame. Each of the channel members 5 is also provided with an end enlargement 8 to accommodate the positioning of cushining or insulating pads 9 of soft rubber or Aother suitable yieldable material, see Figures 2, 5 and 6.

Secured to the under race at each end of each channel member 5, through the medium of spot welding or other suitable securing means 85 as indicated at 10, is an inverted metal cup orv embordering seat 11 adapted to receive a cupped rubber supporting foot 12 as shown lin Figures 3 and 5. The channel members 5, the cushioning pads or blocks 9, the cups` 11, and the feet l2 90.

are apertured to receive at headed securing screws 13 adaptedto enter the sockets D in the typewriter frame foot portions C as shown in Figure 3 of the drawings for the purpose of securing the channel members 5 to the typewriting machine frame with the supporting feet in position for supporting the channels above the desk or table or other support upon which the machine is mountedand the typewriting machine frame above the rails and suitably insulated therefrom by the pads 9.as shown in Fig- Aures 1 and' 3. Each channel member 5 is provided with a threaded bushing 14 adapted to receive a-securing screw 15 by which said channel or'rail 5 may be suitably secured upon the 105l desk or table or other supporting means 16 as shown in Figure 1. Each siderail or channel 5 is also provided with a pair of reinforced threaded sockets 1'7l in which large headed c pins -screws- 18 are 110 operable, said screws being beaded over as at 19 to prevent complete removal thereof from their receiving sockets.

In order to join the channel members 5 to form a unit and tocompletely close the under surface of the typewriter or other machine frame so as to protect it from excessive dust accumulation and also to serve as a collecting means for erasure dust, I provide a cover plate 20 which preferably is constructed of sheet metal, as shown in Figure 7 of the drawings, corrugated as at 21 and flanged at its front and rear edges as at 22 to impart suitable rigidity and having its lateral edges which lie parallel the channel members 5 equipped with laterally directed pairs of mounting lugs or ears 23. The ears 23 are provided with open slots 24 all directed in a common direction or longitudinally as shown in Figures 2 and 7.

By reason of the provision of the cover plate mounting lugs 23, 24 and the positioning thereof complementary to the position of the clamping screws 18 with which the channel members 5 are provided, provision is made for conveniently securing the cover plate to the channel members 5 or removing said plates from engagement with said channel'members. By relieving the screws 18 as indicated in dot and dash lines in Figure 3 of the drawings, the plate 20 may be moved upwardly so that the slots 24 will aline with the screws 18 and then shifted rearwardly to enable said screws to seat within the bottoms of said slots. By then tightening the screws 18, the cover plate-will be securely clamped beneath the channel members 5. f

From the foregoing, it will be observed that the channel members 5 constitute frame means and when joined by the cover plate 20 as just above described, contribute in forming a shock and vibration absorbing supporting and dust protecting unit.

I am aware that dust protecting plates have heretofore been provided but all such structures of which I am aware are clamped to the typewriter or other machine base by the same means which serve to mount the supporting feet and thus it is necessary to remove the feet when removing the plate, frequently resulting in mar-I ring of furniture because if removal of the protective devices. The advantages of my construction will therefore be obvious, it being possible to conveniently remove the cover plate 20 so as to render the bottom mechanisms of the machine accessible for observation or servicing without removal of the two side channels holding the supporting feet 12 and the cushions or pads 9, thus preventing unnecessary defacement of furniture.

In Figure 8 of the drawings, I have disclosed a modified form of cover plate generally designated 25 in which the central portion is depressed or dished as at 26. Such a plate may be used in conjunction with machines in which parts of the mechanism have movement below the normal plane.

In Figure 9 of the drawings, I have disclosed another modied form of the invention in which 'he frame means comprises an open substantially rectangular frame including side rails generally designated 27 and joined by front and rear cross bars 28. In this form of the invention, the frame edge defining the opening adapted to be closed by the cover plate may be-corrugated or beaded as at 29 and the front and rear edges of the cross bars may be flanged as at 30 t9 impart the desired rigidity. The removable cover plate 31 may have the slotted ears or mounting lugs thereof beaded as at 32 to suitably fit the beading 29 extending along the side rails 27.

Aside from the slight differences in construction of the frame means and the cover plates shown in Figures 8 and 9, the parts employed in these modified forms are assembled and function in the same manner previously-described.

In the foregoing description, I have disclosed a simple and efficient shock and vibration absorbing supporting and protecting unit including suitably insulated framing means attachable to a typewriter or other machine frame and which are in turn removably secured to a desk, table or other support, and a protective cover plate which may be applied to and removed from the framing means without disturbing the connection thereof with the machine frame.

I claim:-

1. The combination with the typewriting maldustf cover plate closely underlying the machine frame and independently removably secured to said frame-means whereby said open bottom support frame means and said dust cover plate are readily removable as a unit or said cover plate individually removable without disturbing the mounting of said open bottom support frame means.

2. The 'combination with the typewriting machine frarne and the foot portions thereof, of an open bottom support frame means, a shock and vibration absorbing foot and a shock and vibration absorbing cushion respectively underlying and overlying a frame means portion beneath each-machine frame foot portion, means to secure each foot and cushion and the intervening support means portion to the machine frame foot portion which they underlie, and a dust cover plate underlying the machine frame and independently removably secured to said 1 frame means. g

3. The combination with the typewriting machine frame and the foot portions thereof, of an open bottom support frame means, a shock and vibration absorbing foot underlying a frame means portion beneath each machine frame foot portion, means to secure each foot and the overlying support means portion to the machine frame foot portion which they underlie, and a dust cover plate underlying the machine frame and independently removably secured to said frame means.

4. The combination with the typewriting machine frame, of support frame means secured to and removable from the machine frame, a dust cover plate underlying the machine frame and having spaced pairs of open slotted mounting ears the slots of which project in a common direction, and means depending from the frame means and releasablyengageable with the mounting ears to removably secure the cover plate to said frame means.

5. The combination with the typewriting machine frame including side wall portions, a support frame channel underlying and removably secured to each side wall portion, shock and Viplate underlying the machine frame and inde- 15 of each channel 'and the foot and cushion respectively underlying and overlying it to a respective foot portion, and a dust cover plate underlying the machine frame and independently removably secured to said channels.

7. The combination with thetypewriting machine frame having side wall portions including foot portions, a support frame channel underlying each side wall portion, a foot of resilient material beneath each end ofv each channel,

a cushion of yieldable material overlying each end of each channel, means for securing each end of each channel and the foot and cushion respectively underlying and overlying it to a respective foot portion, a dust cover plate underlying the machine frame and having edge portions paralleling the channels, a pair of open slotted mounting ears projected laterally from each plate edge portion, the slots in said ears being directed and opening in a common direction, and means depending from the channels and releasably engageable in said slots to removably secure the cover plate to said frame means. 4

.8. A dust protector and supporting unit for typewriting and like machines comprising an open bottom supporting frame means, yieldable said frame means and for engaging a typewriter or like machine frame when the latter is mountfeet and cushions for respectively supportingl ed on the unit, means to secure the frame means to such machine frame, a dust cover plate, and means independent of said iirst mentioned se curing means to removably secure the vplate to said frame means.

9. A dust protector and supporting unit for typewriting and like machines comprising a pair of channel members spaced apart a distance for underlying side wall portions of a typewriter or like machine frame, a. foot of yieldable material beneath each end of each channel, a cushion of yieldable material overlying each end of each channel, headed screws passing through the yieldable feet and cushions and said channels for securing said channels to frame portions of a typewriter or like machine, a dust cover plate underlying the machine frame and having edge portions paralleling the channels, a pair of open slotted 'mounting ears projected laterally from each plate edge portion, the slots in said ears being directed and opening in a common direction, and means depending from the channels and releasably engageable in said slots to removably secure the cover plate to said frame means.

BERNARD J. DOWD.

Nlas 

